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METHOXY PEG-200 BETULIN.

Valuable CAS - / SKIN CONDITIONING

METHOXY PEG-200 BETULIN functions primarily as a skin conditioning agent, leveraging its Polyethylene Glycol (PEG) component to enhance hydration and facilitate the absorption of other beneficial cosmetic ingredients. The Betulin moiety contributes antioxidant properties, making it a multifaceted ingredient for comprehensive skin support. It is highly water-soluble, optimizing its integration into various cosmetic formulations.

Summary

Skin conditioning Humectant Solubilizer Antioxidant

Science

Mechanism of Action

This ingredient operates through a dual mechanism. The Methoxy PEG component, a highly hydrophilic polymer, functions as an effective solubilizer, ensuring the uniform dispersion of lipophilic substances within aqueous formulations. It also acts as a humectant, drawing and retaining moisture to improve skin hydration, and enhances the penetration and efficacy of other active cosmetic compounds. The Betulin component, a naturally occurring pentacyclic triterpenoid, provides antioxidant benefits by neutralizing free radicals that contribute to cellular damage. In a broader biological context, betulin is also recognized for potential anti-inflammatory activity and its influence on lipid metabolism.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Methoxy PEG (mPEG) exhibits robust chemical stability, resisting hydrolysis and maintaining its strong hydrophilic character. Polyethylene Glycols are electrically neutral across the entire pH spectrum, with general stability observed within typical cosmetic pH ranges, typically between 4 and 8. PEG solutions are also known to contribute to the stability of certain enzymes.

Conflicts

  • Damaged skin (due to potential nephrotoxicity associated with PEG 200 and its ethers upon compromised skin barrier)
  • PVC IV tubing (specific PEG formulations may induce degradation of tubing, leading to loss of product potency)
  • Sonication (can generate degradation products potentially toxic to mammalian cells)
  • Impurities such as ethylene oxide and 1,4-dioxane (manufacturers must rigorously ensure their removal to maintain safety and purity)

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

While a direct CIR or SCCS assessment for METHOXY PEG-200 BETULIN is unavailable, Polyethylene Glycols (PEGs), including those with a molecular weight of 200, are broadly considered safe for cosmetic application under current use conditions. They demonstrate low acute and chronic toxicities and typically do not penetrate intact skin. A critical consideration is their application on compromised or damaged skin, where PEG 200 and its ethers have shown potential for nephrotoxicity. Manufacturers are obligated to eliminate impurities like ethylene oxide and 1,4-dioxane from the raw material. Betulin itself is non-toxic and stable against environmental factors like oxygen and sunlight. The FDA recognizes Polyethylene Glycol (MW 200-9,500) as a safe food additive for various functional roles.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

METHOXY PEG-200 BETULIN is a valuable ingredient, offering multi-functional benefits as a skin conditioner, humectant, and solubilizer, complemented by the antioxidant properties of its betulin component, with a generally favorable safety profile for intact skin.

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